C.R. Laurence Co., Inc.
Connecting the World to Everything Glass
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Catalog Number: GN101B

  • Available in Two High Strength Formulas
  • Ultra/Bond® Compresses for Tight Tolerances Such as Overlays
  • Will Compress to 1/32" for Mirror Overlays Can Build Up to 3/4" for Uneven Surfaces

  • Available in 10.1 Fluid Ounce Cartridges or Gallon Cans
  • Application Guidelines

  • CRL Gunther Ultra/Bond® and Extra/Build® Mirror Mastics are high quality adhesives formulated to provide a strong, permanent bond between electro-copper-plated glass mirror and various substrates. Both have been field tested for compatibility with silver, copper, and mirror backing. Both have an easy working consistency year round, and will adhere to a wide variety of substrates including drywall, wood, metal, glass, marble, and tile.

    CRL Gunther Ultra/Bond® Mirror Mastic - Gallon Can


    Other Products/Finishes:

    GN100A CRL Gunther Ultra/Bond® Mastic - Cartridge
    GN101B CRL Gunther Ultra/Bond® Mirror Mastic - Gallon Can

    Catalog Number:GN101B
    Also Available in These Catalogs:
    CRL53R Glass & Glazing Catalog, PAGE 104G
    CRL23R Frameless Shower Door and Mirror Hardware, PAGE 476J
    CRL93G Glass and Glazing, PAGE GG002
    CRL03 Sealants, Adhesives, and Fasteners, PAGE N274
    Contents:1 gl. (3.785 l)
    Ship Via:Hazardous Material - No Air Shipments
    Shipping Weight:9 lb (4.08kg)
    Case Qty:4
    Minimum Order:1 Gallon

    NOTE: Not for use on acrylic mirror. Use Cat. No. GN8 Gunther Prime-N-Seal Primer on all porous substrates. Application guidelines are available online for all Gunther products. Mechanical support systems are recommended for all mirror applications.

    Gunther Ultra/Bond®’s viscosity provides for a build out of 3/4" (19 mm), and can be compressed to 1/32" (.8 mm) for mirror installations requiring close tolerances, such as overlays, mirrored furniture, and medicine cabinets. At 72°F (22°C) it achieves approximately 30% strength in 24 hours, full cure up to 605 psi in 30 days. It comes in 10.1 Fl. Oz. cartridges and one gallon cans.

    CRL gives no warranty, express or implied on any mirror mastic. It is the user's responsibility to determine the mastic's suitability to different types of mirror backing and each specific installation.

    Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. ColorsColours can vary depending on your computer's video card and on how your monitor's colorcolour is adjusted.